<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <form action="./welcome.html" method="get">
        <input type="text" value="请输入账号"name="" id="">
        <input type="password" value="请输入密码"name="" id="">
        <input type="submit" value="提交(改名)">
        <input type="radio" name="radio" id="" value="1">
        <input type="radio" name="radio" id="" value="2">
        <input type="radio" name="radio1" id="" value="3">
        <input type="text" name="hidden" value="123" id="" readonly>
        <input type="text" name="hidden" value="345" id="" disabled>
        <button>123</button>
        <input type="button" value="321" name="" id="">
    </form>
</body>
</html>